I think that there is at least one other mold listed on the ChipGuide mold guide which is in fact really a "House" mold, and in this case used at just one casino.

It is listed as "Canoe and Paddles" and is the house mold for the Ilani Casino Resort in Ridgefield, Washington. http://chipguide.themogh.org/cg_chip2.php?id=wariic

It is used there and no where else. I think it has been included because it only contains images and not words, but maybe it should not be included as it would open the door to other non-word "house" molds.

For example if it is kept, you could make the argument that the guide should also have the house mold of the Stakis casinos. It was used at several Stakis owned casinos.

A compromise could be to keep the Golden Nugget and Ilani house molds, but to clearly identify them in the guide as a house mold of a specific casino.